Not until all the fish died in the river _____ how serious the pollution was.
____ you promise to buy her a gift, you can’t break it in any case.
He realized she was crying ________ what he had sad.
They said to us, “Are you afraid to leave this house ?” They asked us ____ afraid to leave _____ house.
The number of people in their class _______51.
It was in New Zealand ______ Elizabeth first met Mr.Smith.